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14804981 is a prime number
BaseRepresentation
bin111000011110…
…011111110101
31000212011121122
4320132133311
512242224411
61245153325
7236561132
oct70363765
930764548
1014804981
1183a2224
124b5b845
1330b4959
141d75589
1514769db
hexe1e7f5

14804981 has 2 divisors, whose sum is σ = 14804982. Its totient is φ = 14804980.

The previous prime is 14804969. The next prime is 14804987. The reversal of 14804981 is 18940841.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10182481 + 4622500 = 3191^2 + 2150^2 .

It is an emirp because it is prime and its reverse (18940841) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-14804981 is a prime.

It is a super-2 number, since 2×148049812 = 438374924820722, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (14804987) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7402490 + 7402491.

It is an arithmetic number, because the mean of its divisors is an integer number (7402491).

Almost surely, 214804981 is an apocalyptic number.

It is an amenable number.

14804981 is a deficient number, since it is larger than the sum of its proper divisors (1).

14804981 is an equidigital number, since it uses as much as digits as its factorization.

14804981 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9216, while the sum is 35.

The square root of 14804981 is about 3847.7241325230. The cubic root of 14804981 is about 245.5477457558.

The spelling of 14804981 in words is "fourteen million, eight hundred four thousand, nine hundred eighty-one".